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Fortuño C, Martín A, Mastrorilli P, Latronico M, Petrelli V, Todisco S. Stable mixed-valence diphenylphosphanido bridged platinum(ii)-platinum(iv) complexes. Dalton Trans 2020; 49:4935-4955. [PMID: 32232305 DOI: 10.1039/d0dt00712a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction between [NnBu4][(C6F5)2PtII(μ-PPh2)2PtIV(C^N)(I)2] (C^N = κ2-N,C-benzoquinolinate, 1) and (i) bidentate S^S, N^S and O^O anionic ligands or (ii) monodentate S- N- or O-based anionic ligands was studied in order to investigate the factors that may guarantee the stability of Pt(ii),Pt(iv) mixed-valence dinuclear phosphanido complexes. While reactions of 1 with S^S or N^S ligands afforded stable Pt(ii),Pt(iv) species of general formula [(C6F5)2PtII(μ-PPh2)2PtIV(C^N)(L^S)]x- [(L^S)(x-1) = 2-mercaptopyrimidinate (pymS-), 2-mercaptopyridinate (pyS-), dimethyldithiocarbamate (Me2NCS2-), ethyl xanthogenate (EtOCS2-) and 1,2-benzenedithiolate (PhS22-)], the reaction of 1 with the O^O ligand sodium acetylacetonate gave several products, and no pure Pt(ii),Pt(iv) complex could be isolated. The reaction of monodentate ligands such as PhS-, OH- or N3- with 1 led to a stable Pt(ii),Pt(iv) complex only in the case of N3-. The reaction with OH- afforded the Pt(ii),Pt(ii) complex [(C6F5)2PtII(μ-PPh2)(κ2-O,P-μ-O-PPh2)PtII(C^N)]- (8) deriving from reductive coupling of a diphenylphosphanide and an O-donor ligand coordinated to the Pt(iv) centre, while the reaction with PhS- produced the unstable Pt(ii),Pt(iv) complex [NnBu4][(C6F5)2PtII(μ-PPh2)2PtIV(C^N)(PhS)2] (11) that evolved in solution to the Pt(ii),Pt(ii) species [NnBu4][(C6F5)2PtII(μ-PPh2)2PtII(C^N)] (9) by elimination of diphenyldisulfide. Thus, the stability of mixed valence Pt(ii),Pt(iv) phosphanide complexes is affected by several concurrent factors, including the chelating effect of the ligands and the type of ligating atoms.
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Affiliation(s)
- Consuelo Fortuño
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-C.S.I.C., E-50009 Zaragoza, Spain.
| | - Antonio Martín
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-C.S.I.C., E-50009 Zaragoza, Spain.
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Censi V, Caballero AB, Pérez-Hernández M, Soto-Cerrato V, Korrodi-Gregório L, Pérez-Tomás R, Dell'Anna MM, Mastrorilli P, Gamez P. DNA-binding and in vitro cytotoxic activity of platinum(II) complexes of curcumin and caffeine. J Inorg Biochem 2019; 198:110749. [PMID: 31200320 DOI: 10.1016/j.jinorgbio.2019.110749] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 06/03/2019] [Accepted: 06/05/2019] [Indexed: 02/07/2023]
Abstract
Three Pt(II) complexes containing the natural ligands curcumin and caffeine, namely [Pt(curc)(PPh3)2]Cl (1), [PtCl(curc)(DMSO)] (2) (curc = deprotonated curcumin) and trans-[Pt(caffeine)Cl2(DMSO)] (3), were synthesized and fully characterized. The data obtained suggest that, for both 1 and 2, the anion of curcumin is coordinated to the platinum ion via the oxygen atoms of the β-diketonate moiety. Spectroscopic features reveal that in 2 and 3, a DMSO molecule is S-bonded to the metal centre. For 3, all data indicate a square-planar geometry formed by a 9-N bonded caffeine, two trans chloride anions and a DMSO. The three complexes undergo changes in solution upon incubation for 24 h; 1 and 2 release curcumin while 3 isomerizes from trans to cis configuration. The DNA-binding and cytotoxic properties of 1-3 were evaluated in vitro. Despite their structural similarity, curcuminate-containing 1 and 2 exhibit distinct DNA interactions. While 1 appears to intercalate between nucleobase pairs, inducing the oxidative degradation of the biomolecule, 2 behaves as a groove binder, by means of electrostatic forces. Caffeine-containing 3 exhibits a behaviour that is comparable to that of 2. Complexes 1 and 2 showed moderate to high cytotoxicity and selectivity against several cancer cell lines, while 3 is inactive. Compounds 1 and 2 can be further activated by visible-light irradiation.
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Affiliation(s)
- Valentina Censi
- Department of Inorganic and Organic Chemistry, Inorganic Chemistry Section, University of Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain; DICATECh, Politecnico di Bari, via Orabona, 4, 70125 Bari, Italy
| | - Ana B Caballero
- Department of Inorganic and Organic Chemistry, Inorganic Chemistry Section, University of Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Spain.
| | - Marta Pérez-Hernández
- Department of Pathology and Experimental Therapeutics, Faculty of Medicine, University of Barcelona, Campus Bellvitge, Feixa Llarga s/n, 08907 L'Hospitalet de Llobregat, Spain
| | - Vanessa Soto-Cerrato
- Department of Pathology and Experimental Therapeutics, Faculty of Medicine, University of Barcelona, Campus Bellvitge, Feixa Llarga s/n, 08907 L'Hospitalet de Llobregat, Spain
| | - Luís Korrodi-Gregório
- Department of Pathology and Experimental Therapeutics, Faculty of Medicine, University of Barcelona, Campus Bellvitge, Feixa Llarga s/n, 08907 L'Hospitalet de Llobregat, Spain
| | - Ricardo Pérez-Tomás
- Department of Pathology and Experimental Therapeutics, Faculty of Medicine, University of Barcelona, Campus Bellvitge, Feixa Llarga s/n, 08907 L'Hospitalet de Llobregat, Spain
| | | | | | - Patrick Gamez
- Department of Inorganic and Organic Chemistry, Inorganic Chemistry Section, University of Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain; Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Spain; Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluís Companys 23, 08010 Barcelona, Spain.
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Azizpoor Fard M, Rabiee Kenaree A, Boyle PD, Ragogna PJ, Gilroy JB, Corrigan JF. Coinage metal coordination chemistry of stable primary, secondary and tertiary ferrocenylethyl-based phosphines. Dalton Trans 2016; 45:2868-80. [PMID: 26792103 DOI: 10.1039/c5dt03962b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Ferrocene-based phosphines constitute an important auxiliary ligand in inorganic chemistry. Utilizing the (ferrocenylethyl)phosphines (FcCH2CH2)3-nHnP (Fc = ferrocenyl; n = 2, 1; n = 1, 2; n = 0, 3) the synthesis of a series of coordination complexes [(FcCH2CH2)3-nHnPCuCl]4 (n = 2, 1-CuCl; n = 0, 3-CuCl), [(FcCH2CH2)2HPCuCl] (2-CuCl), {[(FcCH2CH2)H2P]2AgCl}2 (1-AgCl), [(FcCH2CH2)2HPAgCl] (2-AgCl), [(FcCH2CH2)3PAgCl]4 (3-AgCl), [(FcCH2CH2)3PM(OAc)]4 (M = Cu, 3-CuOAc M = Ag, 3-AgOAc), [(FcCH2CH2)3-nHnPAuCl] (n = 1, 2-AuCl; n = 0, 3-AuCl), via the reaction between the free phosphine and MX (M = Cu, Ag and Au; X = Cl, OAc), is described. The reaction between the respective phosphine with a suspension of metal-chloride or -acetate in a 1 : 1 ratio in THF at ambient temperature affords coordinated phosphine-coinage metal complexes. Varying structural motifs are observed in the solid state, as determined via single crystal X-ray analysis of 1-CuCl, 3-CuCl, 1-AgCl, 3-AgCl, 3-CuOAc, 3-AgOAc, 2-AuCl and 3-AuCl. Complexes 1-CuCl and 3-CuCl are tetrameric Cu(i) cubane-like structures with a Cu4Cl4 core, whereas silver complexes with primary and tertiary phosphine reveal two different structural types. The structure of 1-AgCl, unlike the rest, displays the coordination of two phosphines to each silver atom and shows a quadrangle defined by two Ag and two Cl atoms. In contrast, 3-AgCl is distorted from a cubane structure via elongation of one of the ClAg distances. 3-CuOAc and 3-AgOAc are isostructural with step-like cores, while complexes 2-AuCl and 3-AuCl reveal a linear geometry of a phosphine gold(i) chloride devoid of any aurophilic interactions. All of the complexes were characterized in solution by multinuclear (1)H, (13)C{(1)H} and (31)P NMR spectroscopic techniques; the redox chemistry of the series of complexes was examined using cyclic voltammetry. This class of complexes has been found to exhibit one reversible Fe(ii)/Fe(iii) oxidation couple, suggesting the absence of electronic communication between the ferrocenyl units on individual phosphine ligands as well as between different phosphines on the polymetallic cores.
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Affiliation(s)
- M Azizpoor Fard
- Department of Chemistry, The University of Western Ontario, London, Ontario, CanadaN6A 5B7
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Asamizu T, Henderson W, Nicholson BK, Hey-Hawkins E. Extending the range of stabilised, primary and secondary phosphanes containing ferrocenyl or ruthenocenyl groups. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.01.049] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Forniés J, Fortuño C, Ibáñez S, Martín A, Mastrorilli P, Gallo V, Tsipis A. Synthesis and Reactivity of the Unsaturated Trinuclear Phosphanido Complex [(C6F5)2Pt(μ-PPh2)2Pt(μ-PPh2)2Pt(PPh3)]. Inorg Chem 2013; 52:1942-53. [DOI: 10.1021/ic3021639] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Juan Forniés
- Departamento de Química Inorgánica, Instituto de Síntesis
Química y Catálisis Homogénea, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Consuelo Fortuño
- Departamento de Química Inorgánica, Instituto de Síntesis
Química y Catálisis Homogénea, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Susana Ibáñez
- Departamento de Química Inorgánica, Instituto de Síntesis
Química y Catálisis Homogénea, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Antonio Martín
- Departamento de Química Inorgánica, Instituto de Síntesis
Química y Catálisis Homogénea, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Piero Mastrorilli
- Dipartimento di Ingegneria
Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh), Politecnico di Bari, via
Orabona 4, I-70125 Bari, Italy
| | - Vito Gallo
- Dipartimento di Ingegneria
Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh), Politecnico di Bari, via
Orabona 4, I-70125 Bari, Italy
| | - Athanassios Tsipis
- Laboratory of Inorganic and General Chemistry, Department
of Chemistry, University of Ioannina, 45110 Ioannina, Greece
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Nieto D, González-Vadillo AM, Bruña S, Pastor CJ, Ríos-Luci C, León LG, Padrón JM, Navarro-Ranninger C, Cuadrado I. Heterometallic platinum(II) compounds with β-aminoethylferrocenes: synthesis, electrochemical behaviour and anticancer activity. Dalton Trans 2011; 41:432-41. [PMID: 22025199 DOI: 10.1039/c1dt11358e] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new family of heterometallic compounds 3-6 containing ferrocenyl and platinum(II) centers has been synthesized by reaction of 1-β-aminoethylferrocene (1) and 1,1'-bis(β-aminoethyl)ferrocene (2) with Pt(II) precursors. Using K(2)[PtCl(4)] as the Pt(II) source, the cis-square-planar neutral compounds [Fe{η(5)-C(5)H(4)(CH(2))(2)NH(2)}(2)PtCl(2)] (3) and [{Fe(η(5)-C(5)H(4)(CH(2))(2)NH(2))(η(5)-C(5)H(5))}(2)PtCl(2)] (5) were obtained. Reaction of cis-[PtCl(2)(dmso)(2)] with 1 and 2 resulted in the displacement of dmso and chloride ligands from the platinum coordination sphere, affording the cationic and neutral compounds [Fe{η(5)-C(5)H(4)(CH(2))(2)NH(2)}(2)Pt(dmso)Cl]Cl (4) and [Fe(η(5)-C(5)H(4)(CH(2))(2)NH(2))(η(5)-C(5)H(5))Pt(dmso)Cl(2)] (6). Compounds 3-6 were thoroughly characterized using multinuclear ((1)H, (13)C, (195)Pt) NMR, IR spectroscopy, ESI mass spectrometry and elemental analysis. Single-crystal X-ray analysis of heterometallic 6 confirmed the cis geometry of the molecule and revealed that the platinum atom is held in a perfect square-planar geometry. The electrochemical behaviour of the heterometallic compounds 3-6, which has been examined by cyclic (CV) and square wave (SWV) voltammetries in dichloromethane and dmso solution, is characterized by the reversible one-electron oxidation of the ferrocene moieties. The results of the biological activity studies revealed that the organometallic complex 5 is active against all cell lines with GI(50) values in the range 1.7-2.3 μM. When compared to the standard anticancer drug cisplatin, heterotrimetallic 5, possessing two aminoethylferrocenyl units coordinated to the Pt(II) center, showed a greater activity profile in the colon cancer cell line. Cell cycle studies revealed that the new mixed compound exhibits a mechanism of action different to cisplatin.
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Affiliation(s)
- Daniel Nieto
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 29049, Madrid, Spain
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Latronico M, Mastrorilli P, Gallo V, Dell’Anna MM, Creati F, Re N, Englert U. Hydrido Phosphanido Bridged Polynuclear Complexes Obtained by Protonation of a Phosphinito Bridged Pt(I) Complex with HBF4 and HF. Inorg Chem 2011; 50:3539-58. [DOI: 10.1021/ic102475e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mario Latronico
- Dipartimento di Ingegneria delle Acque e di Chimica del Politecnico di Bari, via Orabona 4, I-70125 Bari, Italy
| | - Piero Mastrorilli
- Dipartimento di Ingegneria delle Acque e di Chimica del Politecnico di Bari, via Orabona 4, I-70125 Bari, Italy
| | - Vito Gallo
- Dipartimento di Ingegneria delle Acque e di Chimica del Politecnico di Bari, via Orabona 4, I-70125 Bari, Italy
| | - Maria Michela Dell’Anna
- Dipartimento di Ingegneria delle Acque e di Chimica del Politecnico di Bari, via Orabona 4, I-70125 Bari, Italy
| | - Francesco Creati
- Dipartimento di Scienze del Farmaco, Università “G. d’Annunzio”, Via dei Vestini 31, 06100 Chieti, Italy
| | - Nazzareno Re
- Dipartimento di Scienze del Farmaco, Università “G. d’Annunzio”, Via dei Vestini 31, 06100 Chieti, Italy
| | - Ulli Englert
- Institut für Anorganische Chemie der RWTH, Landoltweg 1, D-52074 Aachen, Germany
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Dell'Anna MM, Giardina‐Papa D, Ibáñez S, Martín A, Mastrorilli P, Nobile CF, Peruzzini M. Insertion of CO and Strained Olefins into Organometallic (Ferrocenylmethyl)phosphane Palladium Complexes. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900527] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Maria Michela Dell'Anna
- Dipartimento di Ingegneria delle Acque e di Chimica del Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy, Fax: +39‐0805963611
| | - Daniela Giardina‐Papa
- Dipartimento di Ingegneria delle Acque e di Chimica del Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy, Fax: +39‐0805963611
| | - Susana Ibáñez
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Antonio Martín
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Piero Mastrorilli
- Dipartimento di Ingegneria delle Acque e di Chimica del Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy, Fax: +39‐0805963611
| | - Cosimo Francesco Nobile
- Dipartimento di Ingegneria delle Acque e di Chimica del Politecnico di Bari, Via Orabona 4, 70125 Bari, Italy, Fax: +39‐0805963611
| | - Maurizio Peruzzini
- Istituto di Chimica dei Composti Organometallici (ICCOM‐CNR), Via Madonna del Piano 10, 50019 Sesto F.no (Florence), Italy
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Pet MA, Cain MF, Hughes RP, Glueck DS, Golen JA, Rheingold AL. Synthesis and structure of ferrocenylmethylphosphines, their borane adducts, and some related derivatives. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2009.03.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Affiliation(s)
- Piero Mastrorilli
- Department of Water Engineering and of Chemistry, Polytechnic of Bari, Via Orabona 4, 70125 Bari, Italy, Fax: +39‐080‐5963611
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Kalio R, Lönnecke P, Hey-Hawkins E. New ferrocenylmethylphosphines – Preparation, characterisation and coordination chemistry of PH(CH2Fc)2, P(CH2Fc)3 [Fc=Fe(η5-C5H5)(η5-C5H4)] and their derivatives. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2007.10.060] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Dell'Anna MM, Mastrorilli P, Nobile CF, Calmuschi-Cula B, Englert U, Peruzzini M. Reactivity of mononuclear Pd(ii) and Pt(ii) complexes containing the primary phosphane (ferrocenylmethyl)phosphane towards metal chlorides and PPh3. Dalton Trans 2008:6005-13. [DOI: 10.1039/b808966c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kalio R, Lönnecke P, Cinquantini A, Zanello P, Hey-Hawkins E. Cyclopentadienyl Tantalum(V) Complexes with Primary and Secondary Ferrocenylphosphine Ligands. Z Anorg Allg Chem 2007. [DOI: 10.1002/zaac.200700391] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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